公开(公告)号：US07774474B2

公开(公告)日：2010-08-10

申请号：US10744838

申请日：2003-12-23

申请人： Peter Ashwood-Smith ,  Darek Skalecki ,  James A. Sheilds ,  Antonela Paraschiv

发明人： Peter Ashwood-Smith ,  Darek Skalecki ,  James A. Sheilds ,  Antonela Paraschiv

IPC分类号： G06F15/16 ,  H01R31/08

CPC分类号： H04L41/0659 ,  H04L45/24 ,  H04L45/28

摘要： A method and system for resynchronizing a control layer and a line layer by tracing the data path through the line layer and, at the control layer, reclaiming ownership of disowned connections corresponding to the traced data path. Beginning at a head-end controller, the data path is traced by identifying the next controller along the data path and sending a set-up message containing the local state information necessary for a second controller to identify the connection within its associated network element that is associated with the data path. The second controller receives the set-up message and claims ownership of its portion of the data path. It then identifies the next leg or hop in the data path, modifies the set-up message to add data regarding the next hop, and sends the modified set-up message to the next controller along the data path. The process is repeated so as to dynamically establish a control connection corresponding to and synchronized with the existing data path.

摘要翻译： 通过跟踪通过线路层的数据路径，并且在控制层，回收对跟踪的数据路径的未知连接的所有权，来重新同步控制层和线路层的方法和系统。 从头端控制器开始，通过沿着数据路径识别下一个控制器来跟踪数据路径，并发送包含第二控制器所需的本地状态信息的建立消息，以识别其相关网络元件内的连接 与数据路径相关联。 第二控制器接收建立消息并声明其部分数据路径的所有权。 然后，它识别数据路径中的下一个分支或跳跃，修改建立消息以添加关于下一跳的数据，并且将修改的建立消息沿着数据路径发送到下一个控制器。 重复该过程，以动态地建立与现有数据路径相对应并与其同步的控制连接。

公开(公告)号：US20050198312A1

公开(公告)日：2005-09-08

申请号：US10744838

申请日：2003-12-23

申请人： Peter Ashwood-Smith ,  Darek Skalecki ,  James Sheilds ,  Antonela Paraschiv

发明人： Peter Ashwood-Smith ,  Darek Skalecki ,  James Sheilds ,  Antonela Paraschiv

IPC分类号： G06F15/16

CPC分类号： H04L41/0659 ,  H04L45/24 ,  H04L45/28

摘要： A method and system for resynchronizing a control layer and a line layer by tracing the data path through the line layer and, at the control layer, reclaiming ownership of disowned connections corresponding to the traced data path. Beginning at a head-end controller, the data path is traced by identifying the next controller along the data path and sending a set-up message containing the local state information necessary for a second controller to identify the connection within its associated network element that is associated with the data path. The second controller receives the set-up message and claims ownership of its portion of the data path. It then identifies the next leg or hop in the data path, modifies the set-up message to add data regarding the next hop, and sends the modified set-up message to the next controller along the data path. The process is repeated so as to dynamically establish a control connection corresponding to and synchronized with the existing data path.

摘要翻译： 通过跟踪通过线路层的数据路径，并且在控制层，回收对跟踪的数据路径的未知连接的所有权，来重新同步控制层和线路层的方法和系统。 从头端控制器开始，通过沿着数据路径识别下一个控制器来跟踪数据路径，并发送包含第二控制器所需的本地状态信息的建立消息，以识别其相关网络元件内的连接 与数据路径相关联。 第二控制器接收建立消息并声明其部分数据路径的所有权。 然后，它识别数据路径中的下一个分支或跳跃，修改建立消息以添加关于下一跳的数据，并且将修改的建立消息沿着数据路径发送到下一个控制器。 重复该过程，以动态地建立与现有数据路径相对应并与其同步的控制连接。

公开(公告)号：US07376086B1

公开(公告)日：2008-05-20

申请号：US10241423

申请日：2002-09-12

申请人： Antonela Paraschiv

发明人： Antonela Paraschiv

IPC分类号： H04L12/26

CPC分类号： H04L45/04 ,  H04L45/12

摘要： In a multiple element network, a method and network element for providing a constraint based routing system to accommodate non-transitive exceptions. The method and network element receive a connection request for an end to end connection. The network element can select routing information having a pair of adjacent links associated with the multiple elements of the network, where each link of the pair of links has a shared network resource. The shared network resource is compared to a database of exception sets, the exception sets including at least one non-transitive exception predetermined from a plurality of network resources. The network element confirms whether the shared network resource of the selected pair of links is contained within the exception database. A router designs a pathway over the network for the end to end connection using the results of the shared network resource comparison, wherein inclusion in the pathway is inhibited for the shared network resource matching the predetermined exclusion set contained in the database. Accordingly, the list of exception sets is accessible by a constraint based routing algorithm as input to exclude the selected link pair of a pathway for the end to end connection over the network, if the shared network resource of the link pair is contained within the exception sets.

摘要翻译： 在多元网络中，一种用于提供基于约束的路由系统以适应非传递异常的方法和网元。 该方法和网元接收端到端连接的连接请求。 网元可以选择具有与网络的多个元件相关联的一对相邻链路的路由信息​​，其中该对链路的每个链路具有共享网络资源。 将共享网络资源与异常集合的数据库进行比较，所述异常集包括从多个网络资源预先确定的至少一个非传递异常。 网络元素确认所选择的链路对的共享网络资源是否包含在异常数据库中。 路由器使用共享网络资源比较的结果，设计通过网络进行端到端连接的路径，其中对包含在数据库中的预定排除集合的共享网络资源的路径中的包含被禁止。 因此，如果链路对的共享网络资源包含在异常中，则可以通过基于约束的路由算法作为输入来访问异常集合的列表，以排除用于通过网络的端到端连接的路径的所选择的链路对 套。